cytoskeleton

Examples of cytoskeleton in the following topics:

• Microfilaments

  • Microfilaments, which are the thinnest part of the cytoskeleton, are used to give shape to the cell and support all of its internal parts.
  • This network of protein fibers is known as the cytoskeleton.
  • There are three types of fibers within the cytoskeleton: microfilaments, intermediate filaments, and microtubules.
  • Of the three types of protein fibers in the cytoskeleton, microfilaments are the narrowest.

• Intermediate Filaments and Microtubules

  • Microtubules are part of the cell's cytoskeleton, helping the cell resist compression, move vesicles, and separate chromosomes at mitosis.
  • The cytoskeleton is the framework of the cell which forms the structural supporting component.
  • Microtubules are the largest element of the cytoskeleton.
  • With a diameter of about 25 nm, microtubules are the widest components of the cytoskeleton.
  • Describe the roles of microtubules as part of the cell's cytoskeleton

• Characteristics of Eukaryotic DNA

  • Mitosis, a process of nuclear division wherein replicated chromosomes are divided and separated using elements of the cytoskeleton, is universally present in eukaryotes.
  • The cytoskeleton contains structural and motility components called actin microfilaments and microtubules.

• Interphase

  • Some cell organelles are duplicated, and the cytoskeleton is dismantled to provide resources for the mitotic phase.

• Components of Plasma Membranes

  • The plasma membrane also plays a role in anchoring the cytoskeleton to provide shape to the cell, and in attaching to the extracellular matrix and other cells to help group cells together to form tissues.

• Cell Migration in Multicellular Organisms

  • It generally involves drastic changes in cell shape which are driven by the cytoskeleton, for instance a series of contractions and expansions due to cytoplasmic displacement.

• Selective Permeability

  • On the interior of the membrane, some proteins serve to anchor the membrane to fibers of the cytoskeleton.

• Transduction and Perception

  • A mechanosensitive channel is connected to the plasma membrane and the cytoskeleton by hair-like tethers.

• Early Eukaryotes

  • The last common ancestor (LCA) of today's Eukarya had several characteristics that included: cells with nuclei that divided mitotically and contained linear chromosomes where the DNA was associated with histones; a cytoskeleton and endomembrane system; and the ability to make cilia/flagella during at least part of its life cycle.

• The Evolution of Mitochondria

  • They move around inside the cell by interactions with the cytoskeleton.